Motor-cooling system.



C. B. KIRKHAM.

MOTOR COOLING APPLICATION men SEPT. 21. ms.

SYSTEM.

Patented Feb. 18, 19.19.

2 SHEETSSHEET-I 0. B. KIRKHAIVI.

MOTOR COOLING SYSTEM.

APPLICATION FILED SEPT. 27. I9I6.

2'SHEETSSHEET 2.

L fi'ms Patented Feb. 18, 1919.

amen 6oz RKHAM.

' e index-s be interruptedor stopped.

GILES IB. KIAM, OF. BUFFALO, NEW YORK, ASSIGNOR T GUR'I'ISS AEBOPLA'NE AND MOTOR conroaa'rromor nurrnno;

1,29dA'74. Original application filed September To all whom it may concern:

Be it known thatI, Gnam'ns B. KnumAM, a citize of the United States, residing at Buifal in the county 'of Erie and. State of New York, have invented certain new and terns, of which the following is a specificaother cooling agent-through a single main conduit. From this conduit, branch conduits lead to each cylinder bank and ultimately to each cylinder. The cooling agent travels in but a single main circulatory path. Such an arrangement not only results in retardation of the flow but necessitates the employmentbf, a comparatively powerful pump because" of the accumulated skin friction between the cooling agent and the circuit conduits. Moreover, should the flow of the cooling agent be interrupted retarded at any point, the system in its entirety is immediately impaired; *Absolutely no provision is madefor an uninterrupted flow of the cooling agent through one bank of cylinders should the flow in the other bank of cylinders cease. From the foregoing brief summary, it is apparentthat each cylinderbank requires an individual service, i. e.,-a cooling systemdependent upon a' ump of duplex characteristics which permits individual service of the cylinder banks without duplication of servicev pipes, pum elements or similar circuitparts and gig the same time permits uninterrupted circ tion of water through at one'bank of cylinders even should the water the other. bank of cyl whichare adapted to operate circulating through i Specification of Letters Patent.

useful Improvements in Motor-GoolingSys" internal com-' use in. connection with V-type 4 Figure 1 is MOTOR-COOLING SYSTEM.

More specifically, present invention to 'provide'a main operating element of which is in the nature of a double impeller so arranged with respect to the. pump casing o'r'housing as.

to independently circulate thecooling agent (in the present instance) via two circula- ,tmXnpaths.

3 other and important object of this invention is to so construct and assemble the various pumpelements as toprovide for a reverse operation of the pump, should the' motor be reversed, by simply reversing or re-ar'ranging certain of the various pump elements or parts.

In describing my invention in detail refereiice will be had to the accompanying draw ings wherein like characters of reference designate like or corresponding parts throughout the several views, and in which:

duplex pump rangemen't-of and therefrom; I Fig. 2 is a, longitudinal sectional view of the pump and its directly associated driving means; r

Fig. 3' is inthe nature of a diagrammatic it is proposedby the pump, the

NEWiYORK, A COBFORATION OF NEW P te ted nee. is, rare. I

18, 1915, Serial 1%. 51,480. Divided and this application filed September 17,1916. Serial No. 122,439. y

a face view of my improved illustrating the preferred arthe leads respectively thereto.

view illustrating the arrangement of the independent circ cooling system aS arranged upon a multl cylinder V-type motor; I

Fig. 4 is a diagrammatic view similar to atory paths of my improved Fig. 3 illustrating the arrangement of pump partsreversedf;

- Fig: '5 is a pump casing;

\ .Fig. 6 is a. detail sectional view of the .inside pump cover plate and its associated integrally formed support; Fig. 7 is an elevation of' Fig, 8 is an plate casting illustrated in Fig. 5 and- Fig. 9 is asecti'on on The V-type motor cally illustratedmay he impeller the line 9-9, Fig. 1. herein diagrammatibe generally described as including an upper'crank case section and a lower crank case. section, cylinders detail eild elevation of I inside faceview 'ofthe cover angularly disposed in banks at each side of the'lon 'tudinal axis of the crankcase, a crankqs aftya' cam shaft, and .pistons i t e' e p ill) tive cylinders in quite the usual manner. Appropriate inlet and exhaust valve operating mechanism may be also included with the elements above noted as essential to the proper operation of the motor. So much of the motor as I have thus generally described may be designated in its entirety by the numeral 10.

The foregoing details or characteristics may be readily changed in any particular manner not conflicting with the application of this invention thereto since it is the pur-.

. comprising a disk 14 having its lateral faces formed withcurved radially! staggered vanes 15. The body of the pump is of a construction afi'ording a pair of pump chambers adapted to be partially separated by an interiorly located annular flange 16 and to be completely separated by the impeller disk 14, the disk acting in conjunction with the flange to prevent communication between the chambers even'during rotation of the impeller. With each of these chambers there connects one of the inlets 12 as well as outlets 17. The outlets extend laterally part way around the pump casing to a point on a line tangentially-thereto or as illustrated to advantage in Fig. 1. A two-way or double elbow 17' is located at the adjacent-outlet terminals to engage with the opposed or oppositely extending feed-conduits. later to be described. i

Each of the cylinders of the engine is provided with a water jacket which is spaced from its cylinder in any desirable manner, completely. inclosing the explosion chamber thereof. The lowest point in each water jacket is connected directly to a m'anfold 18 serving the bank to which the cylinder belongs, such manfold connecting, obviously, to one ofthe pump outlets 17. Oppositely extending conduits 19 afiord the connecting means. From the highest point of each jacket, and diametrically opposite, a branch pipe leads, the pipes collectively serving to return the cooling agent, via the manifold 20,.the radiator (not shown) and a return conduit 21, to the pump casmg where it isv again and continuously circulated in the made separate.

paths thus defined.

The impeller 13 is keyed upon a shaft 22 and adapted to be actuated through the naeaeve medium of a gear 23,-mounted on this shaft to intermesh with a crank shaft gear (undismanner illustrated in Fig. 2. The inside cover plate 26 has an integrally cast shell 27 formed thereon. The shell or support, as it maybe more properly termed, is of a size and shape in cross section to completely embrace the pump shaft 22 and a packing gland 28 mounted adjacent the outer end of the said shaft at a point where the shaft penetrates the inner pump casing cover plate 26. In fact, the shell or support 27 is cut away as indicated at 29 that access may be gained to the packing gland 28 when required.

Ears 30, preferably three in number, are

formed upon the support27 to engage with v the end crank case cover of the motor, desig- 'nated 31. Bolts 32 are utilized to penetrate the ears '30 and the crank case cover 31 to afiord a positive fastening means for the support and thepump casing carried thereby'. This construction will, eliminate the use of unnecessarily long bolts and yet pro vide for proper spacing of the pump away from the crank case cover, It is essential that the pump be thus spaced in order that the-inlet 12 located at the inner side of the pump may extend therefrom after the fashion disclosed. Bearings of an appropriate design engage with the shaft 22.

By refeyence' to the diagrammatic view Fig. 4, it will be noted that the conduit 19 andthe double-elbow 17 have been r eversed.

This reversible feature is, I believe, essential'ly novel. Without the introduction of a single new-element and by simply re-ar'ranging certain of the component pump parts the operation of the pump may be quickly and completely reversed. In obtaining a reverse operation of the pump it is but necessary to remove and replace the cover plate 25, remove, reverse and replace the conduits 19 and the elbow 17' y and remove, reverse and replace the pump body 24 and the impeller 13. This re-arrangement of parts, (assuming, of course, that the motor has'been reversed) will, without alteration, completely and effectually reverse the operation of the pump. It is to secure this essential feature that the front cover 25 and the body 24. are Were the motor reversed and the pump parts unchanged as regards arrangement, the cooling agent, while active uthfrom thezfact that each g respectively chambers, the inlets centrally of the'pump -outlets laterally of the in so far as circulation is concerned, would circulate in a direction exactly opposite to that required. The parts enumerated only need be reversed. V

Tn'practice, the cooling agent is indrawn at opposite sides of the impeller disk into the pump casing and expelled therefrom by the action of the impeller. From the pump casing, the cooling agent travels in a circulatory path through the conduits 19,.the inanifolds 18, the cylinder water jackets, the manifolds 20, the radiator andthe conduits 21 in the order named, the conduits 21 returning the cooling agent again to the pump casing for continued circulation after the manner casing interiorly, two independent yet correlated circuits are in evidence. The circuits in a sense act conjomtly by reason'of theutilization of but a single pump structure yet actually operate independently in that the cooling agent circulated for cooling each bank of'cylinders travels in a distinct and non communicating path. As suggested, should the water flow of one circuit be interrupted or checked, the water fiow in the other circuit will be in no wise afiected. Even should the impeller at one side of the disk 14: be impaired, the circulation occasioned by contlnued rotation of the remaining active continue.

lhe advantages of a cooling system such as that described are believed to be evident cylinder bank is given a better service and a'more direct service, while at the same time the'number of pumps is not increased owin tothe fact that the pump casing is provided with a similar palr each of inlets and outlets .which communicate with 'the opposed portion of the propeller would casing and at opposite sides thereof and the ump casing and in a sense circumferentia thereof. The locatlon of the outlets with respect to the pump casing is such as to enhill ablenthe pump to centrifugally expel the water via the cbnduitsl 19. To drain the pump casing a; single plug 33 is provided,

the plug engaging at the lower end of the pump casin with the flange 16, the said flange afior mg an abutment whereby adjustment of the plug is limited. lBy removing the plug-both sections or chambers of the pump casing may be efl'ectually drained.

Although I have described more or less precise forms and details of structure, 'I'do 'not intend to be understood as limiting myself thereto as If contemplate changes 111- form, the proportion ofparts and the substitution of equivalents as circumstances may suggest or render expedient and without departing from? the spirit of the invention-as claimed. I

sponding pum disclosed. By dividing the pump y or tangentially What is claimed is:

1. The combination with an internal'combustion engine'having cylinders arranged in banks, of a cooling system including a multiple pump having an element individual to each of said banks and a cooling circuit for each of said cylinderbanks establishing communication therebetween and the correelement.

2. The comblnation with an internal combustion engine having cylinders arranged in banks, of a', cooling having a separate element individual to each of said banks, a'circuit for each bank separately connectlng with its pump supply element, and a means cooperating with said a pump for partitioning the correlated pircuits to permit of the independent circulation of a cooling agent therethrough.

3. The combination with an internal combustion engine having cylinders arranged in two banks, of a cooling system including a duplex pump, circuits separately connecting with the'members of said duplex pump for independent service of each cylinder bank,

and anmeans mounted within the pump and cooperating therewith to separate the circuits and simultaneously force a cooling agent therethrough.

4:. The combination with an internal combustion engine having cylinders arranged in two banks, of a cooling system including an independent circuit for each of said'cyliiider banks, and a duplex pump dually functioning to separate the correlated circuits and to force a cooling agent therethrough, each of the elements of the duplex pump together with the corresponding cooling circuit serving as an independent cooling system for each bank of cylinders.

5. The combination with an internal comsystem including a pump lot bustion engine having cylinders arranged in banks, of a cooling system including an independent circuit for each of said cylinder banks, a means partitioning the circuits to permit of unrestricted circulation through one in the event of an interrupted, circulation through the other, and a means common to both circuits for simultaneously inducing independent circulation therein.

6. The combination with an internal combustion engine having cylinders arranged in banks, of a cooling system including a ump, circuits-separately connecting with said pump, and an impellermounted within the pump to separate the circuits and simultaneously 'force a cooling agent therefthro'ugh.

I 7 The combination with an internal com- 5 bustion engine having cylinders arranged in banks, of a cooling systemincluding a pump having a central body, an impeller mounted within said body to subdivide the same into chambers, vanes carried by said impeller for projection into eachchamber, and separate bers, vanes arranged on both faces of the propeller to project into opposite chambers, separable circuits connecting with respective chambers and with said circulating circuits, and inlets also communicating with i the pump body through respective chambers.

9. The combination with an internal combustion engine, of a cooling system including a pump, an impeller mounted within the pump and having its lateral faces disposed toward separate portions of the pump, circuits arranged to connect independently to the pump by entrance thereinto adjacent opposite impeller faces, and inlets for the pump also connecting thereto adjacent op- I posite impeller faces.

l0."llhe combination with an internal combustion engine of a cooling system including a water pump reversible by re-arrangement of certain of the pump parts to secure proper circulation of the cooling agent should the engine be reversed.

' 11. The combination with an internal combustion engine of a water pump including a reversible impeller, an impeller shaft,

and a reversible pump body having reversible conduits leading therefrom to secure a complete reverse operation of the pump without altering the circulatory nath or" the cooling agent forced therethrough and withnaeaere combustion engine and water cooling jackets of a water circulating pump including a reversible impeller, an impeller shaft, a symmetrically arranged cylindrical pump cas ing inclosing said impeller and having a tangential outlet, a pair of end closing plates adapted to receive said cylindrical casing therebetween and having their engaging surfaces complementally and similarly formed to receive said cylindrical casing in either of its reversed positions, and connections leading from said tangential outlet tosaid water jackets whereby complete reversal in operation of the pump may be effected without altering the circulatory path of the cooling agent forced there through and without alteration but rearrangement of the pump parts.

14. In an engine motive power apparatus, the combination of a plurality of cylinders arranged in sets having jackets for the circulation therethrough of a cooling fluid, of a cooling system including a multiple pump having elements individual to said sets of cylinders, and cooling circuits individual to said sets of cylinders for establishing co- 

